Monitoring pollution in our environmet is an important task in its preservation, and simplification of methodology for monitoring pollutants presents an imperative. Heavy metals and various toxic compounds are particularly dangerous because of their bioacummulation. Therefore, a wide range of methods was developed for determination of pollutant concentartion in environment. Today, biosensors have shown to be fast and reliable solution for monitoring environmental pollution caused by heavy

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... and toxic compounds. Sensor miniaturisation has enabled in situ measurements thus excluding longterm and sometimes expensive measurements in laboratories. In this paper, short overwiev of some biosensors has been shown, including their application in detection and monitoring heavy metals and toxic compounds in environment.